Abstract: In this study, it was aimed to determine the effect of progressive muscle relaxation exercises based
on cognitive behavioral therapy in the field of psychotherapy on flute performance success of the students
receiving Individual Instrument (Flute) Education. The study was conducted on the basis of a random pattern
with a pretest-posttest control group, which is one of the real experimental research approaches. The study
group of the research consists of undergraduate students (n=10) at the 1st grade who were studying at Gazi
University Gazi Faculty of Education Fine Arts Education Department of Music Education in the spring
semester of 2018-2019 academic year and started playing the flute at the first grade. During the 8-week
experimental process, the flute teaching program based on progressive muscle relaxation exercises was applied
to the experimental group and the traditional flute teaching program was implemented on the control group.
Measurement performed over the same surveys (Gariboldi and Moyse's surveys) during the pretest and posttest
stage including different technical and musical skills determined by taking expert opinions in order to identify
the success levels of the experimental and control groups regarding their flute performances, were scored
through the examination of the video records of student performances by 3 lecturers specialized in their fields.
In the research, the data were obtained using the "Performance Assessment Form" created by the researcher in
line with expert opinions. The obtained data were analyzed through SPSS 23.0. In the analysis of the data, after
the interrater reliability (α), intraclass correlation coefficient, Kendall's W test results and the normal
distribution were first examined, the Mann-Whitney U test, where mean ranks of small and independent groups.